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Nexperia USA Inc. BAS20-QVL
- Part No.:
- BAS20-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAS20-QVL.pdf
- Description:
- BAS20-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,951
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Product details
Overview
BAS20-Q from Nexperia is a high-voltage switching diode in SOT23 package, rated for 200 V repetitive peak reverse voltage (VRRM), 1.25 V forward voltage at 200 mA, and 50 ns reverse recovery time (trr). It delivers low leakage (100 nA at 150 V, 25 °C), 5 pF capacitance, and AEC-Q101 qualification for automotive-grade reliability in high-speed clamping and polarity protection circuits.
For engineers reviewing the BAS20-Q datasheet, BAS20-Q pinout, BAS20-Q application, or BAS20-Q equivalent, key selection criteria include its 200 V VRRM rating, 50 ns trr performance, SOT23 3-terminal footprint with Pin 2 unconnected, and suitability for high-voltage transient suppression in engine control units and power supply rails.
Technical Context
This discrete high-voltage switching diode operates as a unidirectional current valve with fast turn-off behavior enabled by low minority-carrier lifetime design. Its 50 ns trr and 5 pF junction capacitance support clean signal edge handling in >1 MHz switching environments.
The device sustains 150 V DC reverse bias (VR) and 200 V repetitive peak (VRRM), with thermal resistance Rth(j-a) of 500 K/W on FR4 PCB. Junction temperature remains within 150 °C under 200 mA continuous forward current and ambient up to 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - supports sustained operation in 170 VAC-derived DC rails with safety margin |
| VF @ 200 mA | 1.25 V - limits conduction loss to ≤250 mW at rated forward current |
| trr | 50 ns - enables reliable switching in 10–20 MHz PWM and snubber applications |
| IR @ 150 V, 25 °C | 100 nA - ensures minimal standby power drain in high-impedance clamp networks |
| Cd @ 0 V, 1 MHz | 5 pF - preserves signal integrity in RF-coupled detection and timing circuits |
| Ptot | 250 mW - defines maximum dissipation on standard FR4 layout without heatsinking |
| Tj max | 150 °C - aligns with under-hood automotive ambient requirements per AEC-Q101 |
Pinout & Package
Encapsulated in a standard SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch), the BAS20-Q features three terminals with Pin 2 internally unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward current entry point; connects to higher-potential node in clamping or rectification path |
| 2 | Not connected (n.c.) | No internal bond wire; must remain floating-no PCB trace or solder connection permitted |
| 3 | Cathode (K) | Forward current exit and reverse-bias reference terminal; ties to system ground or return rail |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including engine control, body electronics, and ADAS power domains |
| trr ≤ 50 ns | Enables efficient high-frequency flyback and snubber operation without excessive switching loss |
| VRRM = 200 V | Supports direct interface with 125 VDC industrial bus lines and 170 VDC rectified AC inputs |
| Cd ≤ 5 pF | Minimizes capacitive loading on high-impedance sensor outputs and clock distribution nodes |
| IFSM = 9 A (1 µs) | Withstands short-circuit transients in automotive load-dump and inductive kick scenarios |
Applications
| Engine Control Unit (ECU) Clamping | Automotive LED Driver Protection |
|---|---|
Use Scenario: Suppresses inductive voltage spikes from fuel injector solenoids during turn-off in 12 V automotive systems. IC Role / Device Role / Timing Role: Fast-switching clamp diode placed across solenoid coil to limit flyback voltage to ≤200 V. Use Value: Prevents MOSFET gate oxide breakdown using 50 ns trr and 200 V VRRM margin against 120 V typical spike amplitude. |
Use Scenario: Provides reverse polarity protection for constant-current LED drivers in headlamp modules. IC Role / Device Role / Timing Role: Series anode-to-cathode blocking element that conducts only during correct battery orientation. Use Value: Ensures zero standby leakage (<100 nA) and minimal forward drop (1.25 V) to preserve driver efficiency and thermal budget. |
| Industrial Power Supply Snubbing | High-Voltage Signal Conditioning |
Use Scenario: Absorbs switching transients in 100–200 V DC-DC converter output stages with MOSFET synchronous rectifiers. IC Role / Device Role / Timing Role: RC-snubber auxiliary diode that clamps ringing above 150 V while maintaining low capacitance. Use Value: 5 pF Cd avoids resonance shift in 1–5 MHz switching nodes; 200 V VRRM covers worst-case overshoot. |
Use Scenario: Protects precision analog front-ends (e.g., ADC inputs) from overvoltage events in factory automation sensors. IC Role / Device Role / Timing Role: High-impedance voltage limiter tied between signal line and reference rail. Use Value: 100 nA IR prevents DC offset drift; 50 ns trr ensures sub-microsecond response to ESD-like transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBD2004LT1G | VRRM = 200 V, trr = 50 ns, but VF = 1.3 V @ 200 mA and IR = 200 nA @ 150 V | Higher leakage may impact ultra-low-power sensor protection; identical SOT23 pinout | Select when legacy ON Semi BOM alignment is required; verify leakage tolerance in battery-backed systems |
| Diodes Incorporated BAV20W-7-F | VRRM = 200 V, trr = 50 ns, VF = 1.25 V @ 200 mA, but not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial power supplies only | Choose for cost-sensitive non-automotive designs where AEC-Q101 compliance is not mandated |
Compared with MMBD2004LT1G and BAV20W-7-F, the BAS20-Q uniquely combines AEC-Q101 qualification, 100 nA leakage at 150 V, and guaranteed 50 ns trr in a production-proven SOT23 footprint-making it the preferred choice for automotive-clamp and high-reliability industrial applications demanding verified robustness.
Availability
BAS20-Q is available at Aetrix Electronics and suitable for automotive engine control units, industrial DC-DC converters, and LED lighting systems requiring stable component supply with full AEC-Q101 traceability and long-term lifecycle support.
Supply support for BAS20-Q includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global semiconductor expert focused on high-volume, high-reliability essential semiconductors-including logic, discretes, and MOSFETs-with manufacturing rooted in process technology and automotive-grade quality systems.
The BAS20-Q belongs to Nexperia's AEC-Q101-qualified high-voltage switching diode product line, engineered specifically for robust transient suppression and polarity protection in harsh automotive and industrial power environments.
FAQ
Is BAS20-Q suitable for reverse polarity protection in 24 V automotive systems?
Yes. With 200 V VRRM and 150 V VR rating, the BAS20-Q safely blocks reverse battery connections in 24 V systems where load dump transients can exceed 100 V. Its 100 nA leakage at 25 °C ensures negligible quiescent current draw, preserving battery life in always-on modules.
What is the thermal derating behavior of BAS20-Q above 25 °C ambient?
Per Figure 5 in the datasheet, the maximum continuous forward current decreases linearly from 200 mA at 25 °C to 0 mA at approximately 150 °C ambient on FR4 PCB. Derating slope is ~1.5 mA/°C, consistent with its 500 K/W junction-to-ambient thermal resistance.
Can Pin 2 be used as a heatsink pad or grounded for thermal improvement?
No. Pin 2 is explicitly marked "n.c." (not connected) in the datasheet and has no internal bond. Connecting it electrically risks mechanical stress on the die attach or contamination-induced failure. Thermal performance relies solely on junction-to-solder-point path via Pins 1 and 3.
How does BAS20-Q compare to standard 1N4148 in high-voltage applications?
The BAS20-Q offers 200 V VRRM versus 1N4148's 100 V, making it unsuitable for direct substitution above 75 V. Its 50 ns trr matches 1N4148, but lower Cd (5 pF vs. ~4 pF) and AEC-Q101 qualification provide superior performance and reliability in automotive 12/24 V systems with stringent transient immunity requirements.
BAS20-QVL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 200 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 150 V
- Capacitance @ Vr, F:
- 5pF @ 0V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
- Operating Temperature - Junction:
- 150°C
BAS20-QVL FAQ
1.How can I place an order for BAS20-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS20-QVL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for BAS20-QVL reliable?
The price and inventory of BAS20-QVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS20-QVL is usually 5 days.
3.What payment methods are accepted for BAS20-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS20-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS20-QVL?
BAS20-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS20-QVL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for BAS20-QVL?
For technical support, including BAS20-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS20-QVL requirements.
6.How does Aetrix verify that BAS20-QVL is sourced from the original manufacturer or authorized distributors?
All BAS20-QVL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BAS20-QVL meets industry standards.
7.What is the process for return or replacement of BAS20-QVL?
All BAS20-QVL units undergo pre-shipment inspection (PSI). If there is an issue with BAS20-QVL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The BAS20-QVL part is unused and in its original packaging.
Return procedure for BAS20-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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